Electric-lighting gas-burner.



No. 636,056. I Patented Oct. 31, I699.

. R. c. uounsz.

ELECTRIC LIGHTING GAS BURNER.

(Application filed May 12, 1899.)

PATENT FFICE.

UNITED STATES RUFUS O. NOURSE, OF BOSTON, MASSACHUSETTS.

ELECTRlC-LIGHTING GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 636,056, dated October 31, 1899- Application filed May 12, 1899. Serial No. 716,532. (No model.)

To all whom it may concern.-

Be it known that I, RUFUS O. NOURSE, of Boston, in the county of Suifolk and State of Massachusetts, have invented certain new and useful Improvements in Electric-Lighting Gas-Burners, of which the following is a specification.

This invention relates to electric-lighting gas-burners; and its principal objects are to increase the life and safety of such devices, and also in burners having provisions for carrying the movable electrode past the fixed electrode without contact in the valve-closing movement to provide a compact and positively-operating construction.

The invention consists in the novel features of construction and arrangement which I shall now proceed to describeand claim.

Of the accompanying drawings, Figures 1, 2, and 3 represent front elevations of a gasburner constructed in accordance with my invention, "showing different positions of the operative parts. Figs. 4, 5, and 6 represent corresponding plan views showing the relation of the electrodes. Figs. 7 and S represent sections on the line 7 7 and 8 8 of Figs. 1 and 2, respectively. Fig. 9 represents a section on the line 9 9 of Fig. 1, but with the parts in a different operative position. Fig.

10 represents a viewin section and elevation showing the construction of the operatingspindle.

The same reference characters represent the same parts in all of the figures.

Referring to the drawings, a designates a gas-burner having a gas-tip b and a fixed electrode c mounted in proximity thereto, and d designates the plug or valve of said burner, having attached to its end an arm d.

a and a are apertured lugs mounted on the side of the burner a and forming guides or bearings for a spindle e, which carries the movable electrode f at its upper end. Said spindle is adapted to be rotated by means of a knob or handle 6 at its lower end.

Attached to the spindle e above the upper lug a is an arm e connected with the plugarm 01 by means of a link 9,, which is attached by screws (1 e to collars d a loosely fitted on the ends of the respective arms, whereby the free movement of the parts is permitted,

and the plug is rotated to turn the gas on or off by the rotation of the spindle.

A pin h, driven through the spindle e and projecting on either side thereof, normally abuts against the lower lug a? to limit the downward movement of the spindle, and a springj, interposed between the upperlug a and said pin h, normally operates to depress the spindle. Two pins 7 t", projecting upwardly on the lower lug a cooperate with the outer end of the pin h in limiting the rotary movement of the spindle.

is a cam pivoted on a stud 10 between the spindle e and the face of the burner a and engaged, by a spring which normally depresses its free end against the upper surface of the lower lug (1 the pivotal end of said cam being elevated a slight distance above the said lug.

Figs. 1, 4E, and 7 illustrate the relation of the parts when the gas is turned off. The plug-arm d is then thrown over to the-left, and the inner end of the pin h is in engagement with the pin 1'. In turning the gas on the spindle e is rotated in the direction of the arrow 00, and the pin h passes underneath the cam it between it and the lug a lifting said cam, as shown in Fig. 9. During such movement of the spindle the movable electrodef brushes past the fixed electrode 0, causing an igniting-spark, and at the termination of the movement the plug-arm d is thrown over to the right, as shown in Fig. 2. Upon rotating the spindle e in a reverse direction to shut 0d the gas the pin h rides up over the cam is, causing the spindle e to be elevated against the tension of its springj, thereby lifting the movable electrode f over the fixed electrode 0 withoutcontacting therewith. At the limit of its movement the pin it slips down over the rear edge of the cam 70, and the spindle resumes its normal position. The spindle mechanism thus provided for actuating the movable electrode is compact, sure in its operation, and little liable to derangement.

It has heretofore been common in burners of this character to mount the hand device plug is subjected to strains in operation both longitudinally and crosswise of its axis, which often have the effect of loosening it and cansing the burner to leak. By mounting the operatin g device independently of the plug,however, and connecting it therewith bya link or equivalent, substantially as I have described, I remove all detrimental strain from the plug, and thus increase the safetyand life of the burner.

The operating-spindle e is constructed in two parts 2 and 3, the upper part 2 being permanently connected with the mechanism of the burner and the lower part 3 being connected to the upper part by means of a coupling construction as follows: The upper part or section 2 is reduced on two sides, the part between the reduced portions being of increased diameter and provided with a screwthread 4 on both sides of the spindle, while the lower part or section 3 is slotted to receive the reduced end of the upper section and is provided with a coupling-nut a, screwthreaded on its inside to engage the threaded portion at the end of the upper section 2. Said nut when loose is adapted to slide along the lower section 3, and its upward movement in the direction of the upper section is limited by means of a pin 6 passed through the lower section 3 and engaging an inturned flange on the nut.

I claim 1. In an electric gas-lighting device the combination of a burner having a plug or valve, an arm on said plug, a spindle mounted to turn in a bearing on the burner independent of the plug and having an arm, collars loosely mounted on the respective arms, and a link pivoted to said collars and connecting the arms.

2. In an electric gas-lighting device the combination of a burner having a plug or valve, an arm 011 the end of said plug, a rotary and longitudinally movable spindle mounted alongside of said burner and having an arm, a link connecting said arm with the plug-arm, a movable electrode carried by the spindle, a fixed electrode, and means constructed to produce a longitudinal movement of said spindle when the latter is rotated in a direction to shut off the gas, thereby carrying the movable electrode by the fixed electrode without contacting therewith.

3. In an electric gas-lighting device the combination of a burner having a plug or valve, apertured guiding-lugs on the side of said burner, a spindle mounted to rotate and slide longitudinally in said apertured lugs and having an operating connection with the plug, a movable electrode carried by the spindle, a fixed electrode, a spring normally depressing the spindle in its guides and surrounding said spindle between the guiding-lugs, a movable cam, and a part on the spindle cooperating with said cam to lift the spindle against the tension of its spring when said spindle is rotated in a direction to shut off the gas, thereby carrying the movable electrode past the fixed electrode without contacting therewith, the cam being lifted by said part when the spindle is rotated in a direction to turn on the gas, thereby carrying the movable electrode into contact with the fixed electrode.

4. In an electric gas-lighting device the combination of a burner having a plug or valve, two apertured guiding-lugs on the side of said burner, a spindle mounted to rotate and slide longitudinally in said apertured lugs and having an operating connection with the plug, a pin passed through the spindle and normally abutting the lower lug so as to limit the depression of the spindle, two stops on said lug adapted to cooperate with one end of said pin to limit the rotary movement of the spindle, a spring surrounding said spindle between the upper lug and the said pin, and normally depressing the spindle and a spring-depressed pivotalcam mounted in the path of the other end of said pin, a movable electrode carried by the spindle, and a fixed electrode, the pin riding over the cam when the spindle is 1'0- tated in a direction to shut off the gas, thereby carrying the movable electrode past the fixed electrode without contacting therewith, and said pin passing between said cam and the lower lug when the spindle is rotated in a direction to-turn on the gas, thereby carrying the movable electrode into contact with the fixed electrode.

5. An electric gas-lighting burner having an operating-spindle made in two sections, one connected with the mechanism of the burner and the other having a knob or handle for rotating the spindle,and a separable coupling member connecting the two sections.

In testimony whereof I have affixed my signature in presence of two witnesses.

RUFUS O. NOURSE.

\Vitnesses:

P. W. PEZZETTI, A. D. HARRISON. 

